Post on 19-Aug-2018
Copyright © 2007 Design AVEnues
LEED for Homes Tips for Successful Projects
Ann Edminster M.Arch., LEED AP
Design AVEnues
avedminster@designavenues.net | 115 Angelita Avenue | Pacifica, CA 94044 | 650-355-9150
© Design AVEnues 2009. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited.
Copyright © 2007 Design AVEnues
The Main Points
Understand the program
Understand the process
Use integrative design
Model early & often
Get the order right
Set expectations
Manage the process
Copyright © 2007 Design AVEnues
UNDERSTAND THE PROGRAM
PLATINUM
GOLD
SILVER
CERTIFIED
± 90
± 75
± 60
± 45
1. Comply with all MANDATORY
MEASURES, a.k.a. prerequisites
2. Meet or exceed category
POINT “FLOORS”
3. Achieve minimum overall
SCORE
Copyright © 2007 Design AVEnues
The Threshold Adjuster
… compensates for the overarching effect of home size on resource use by adjusting the award level point thresholds based on floor area.
Minimum Score to be Certified:
Floor Area 3 Bedrooms 4 Bedrooms
2,000 47 38
3,000 57 49
4,000 65 56
Copyright © 2007 Design AVEnues
Home Size
478 SF/person
average floor area 1,500 SF
3.14 people per household
In 1950
In 1970
1.6 x 1950
In 2000
2.8 x 1950
297 SF/person
average floor area 1,000 SF
3.37 people per household
840 SF/person
average floor area 2,200 SF
2.62 people per household
Copyright © 2007 Design AVEnues
The Rating Categories
ID LL SS WE EA MR EQ AE
INNOVATION &
DESIGN PROCESS
LOCATION &
LINKAGES
INDOOR ENVIRONMENTAL
QUALITY
WATER
EFFICIENCY
MATERIALS &
RESOURCES
ENERGY &
ATMOSPHERE
AWARENESS &
EDUCATION
SUSTAINABLE
SITES
Copyright © 2007 Design AVEnues
ID LL SS WE EA MR EQ AE
POINTS: 21
FLOOR: 6
PREREQS: 7
POINTS: 15
FLOOR: 3
PREREQS: 0
POINTS: 16
FLOOR: 2
PREREQS: 3
POINTS: 22
FLOOR: 5
PREREQS: 2
POINTS: 11
FLOOR: 0
PREREQS: 3
Points, Floors, Prerequisites
POINTS: 38
FLOOR: 0
PREREQS: 8
POINTS: 10
FLOOR: 0
PREREQS: 0
POINTS: 3
FLOOR: 0
PREREQS: 1
Copyright © 2007 Design AVEnues
The Delivery System
USGBC
PROVIDER
PROJECT TEAM
GREEN
RATER
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Roles & Responsibilities
PROVIDER
Oversight Certification Quality assurance Liaison to USGBC
Copyright © 2007 Design AVEnues
Roles & Responsibilities
PROVIDER
Oversight Certification Quality assurance Liaison to USGBC
GREEN RATER
Preliminary review
LEED on-site verification
Navigational support
Certification administration
Consulting (sometimes)
Copyright © 2007 Design AVEnues
Roles & Responsibilities
PROVIDER
Oversight Certification Quality assurance Liaison to USGBC
GREEN RATER
Preliminary review
LEED on-site verification
Navigational support
Certification administration
Consulting (sometimes)
HERS RATER
HERS on-site verification
Performance testing
Modeling (sometimes)
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Roles & Responsibilities
PROJECT TEAM
COMMIT (Contract Documents)
Plan and follow through
Document your decisions
Prepare submittals
Copyright © 2007 Design AVEnues
Roles & Responsibilities
PROJECT TEAM
Submittals
Durability forms
CIR/ID proposals
Accountability Forms
EPP information
O&M manual
Additional documentation
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UNDERSTAND THE PROCESS
Pre-construction
During Construction
Completion
Copyright © 2007 Design AVEnues
The LEED for Homes Process
CONFER
WITH GREEN
RATER &
REVIEW PLANS
BUILD
GREEN
HOME(S)
PRE-
DRYWALL
VERIFICATION
COMPLETE
HOME(S) &
LANDSCAPE
SELECT
PROVIDER REGISTER
ONLINE
SELECT
GREEN RATER
SUBMIT
INITIAL
PAPERWORK
DOCUMENTATION
& FINAL
VERIFICATION
PRE-
DRYWALL
VERIFICATION
COMPLETE
HOME(S) &
LANDSCAPE
Copyright © 2007 Design AVEnues
Review design with Provider
& Green Rater
Identify additional work needed
Estimate score and rating level
Promote per USGBC guidelines (optional)
CONFER
WITH GREEN
RATER &
REVIEW PLANS
PRE-CONSTRUCTION
Copyright © 2007 Design AVEnues
Durability Risk Evaluation
Durability Checklist
HERS Report (energy modeling)
Waste Diversion Plan
SUBMIT
INITIAL
PAPERWORK
PRE-CONSTRUCTION
Copyright © 2007 Design AVEnues
Thermal bypass inspection
Durability / envelope measures
(optional)
Site protections
PRE-
DRYWALL
VERIFICATION
PRE-
DRYWALL
VERIFICATION
DURING
CONSTRUCTION
Copyright © 2007 Design AVEnues
Instructions
General Information
Builder Name:
Subdivision Name:
House Address:
Provider's Name:
Rater's Name:
Sampling Protocol Used: (Y / N)
LEED Score: / 100 Points
LEED Rating Achieved: (Certified, Silver, Gold, Platinum)
HERS Score Achieved: / 100 Points
Location & Linkages Water Efficiency
@ 2 Site Selection @ 1.1 Water Reuse; Rainwater Harvesting
@ 5.1 Average Housing Density >/= 7 Units / Acre @ 1.2 Water Reuse; Grey Water Reuse
@ 5.2 Average Housing Density >/= 10 Units / Acre @ 2.2 Irrigation System; High Efficiency Measures
@ 5.3 Average Housing Density >/= 20 Units / Acre Materials and Resources
Sustainable Sites @ 1 Smaller Home
@ 2.1 Basic Landscaping Design @ 4.1 Durability Plan; (Pre-Construction)
@ 2.4 Minimize Landscape Water Demand Energy and Atmosphere
Indoor Environmental Quality @ 2.3 Insulation; Above Code
@ 3 Humidity Control System @ 6.1 HVAC Meets ENERGY STAR for HVAC
@ 4.1 Outside Air Ventilation; Meets ASHRAE/Std 62.2 @ 10 Renewable Electric Generation System
@ 5.1 Local Exhaust; Meets ASHRAE Std 62.2 @ 11 Residential Refrigerant Management
@ 6.1 Supply Air Distribution; ACCA Manual D Innovation and Design Process
@ 9.1 Radon Protection; Install System, EPA Zone 1 @ 1.1 Provide Description and Justification
@ 9.2 Radon Protection; Install System, Not EPA Zone 1 @ 1.2 Provide Description and Justification
Homeowner Awareness @ 1.3 Provide Description and Justification
@ 1.1 Basic Owner's Manual & Walkthrough @ 1.4 Provide Description and Justification
@ 1.2 Comprehensive Manual & Multiple Walkthroughs
Official Certification (to be Completed After Final LEED for Homes Rating)
Responsible Party Date
Printed Name
Project Role / Title
Organization / Company
Signature
All declarations and affirmations made in this accountability form are made to USGBC solely for the purpose of assisting USGBC in determining
whether LEED Certification is merited. No such declaration or affirmation can be construed as a warranty or guarantee of the performance of the
building.
By affixing my signature below, the undersigned does hereby declare and affirm to the USGBC that the LEED for Homes requirements, as
specified in the LEED for Homes Rating System, have been met for the indicated credits and will, if audited, provide the necessary
supporting documents (drawings, calculations, etc.).
Overall Performance Data
This form is to be completed by the person / organization responsible for the design and/or implementation of one or more of the LEED for
Homes credits below. A separate form shall be completed by each design professional responsible for one or more credits.
Areas of Accountability
Accountability Form
(Version 1.7, August 12, 2005)
Step 1. Review the requirements for the credits in the LEED for Home Rating system for which you are responsible.
Step 5. Complete the Official Certification section at the bottom of the form.
Step 6. Maintain a project documentation file to assist in the event of an audit of your credit(s) or of this project by the USGBC.
Step 4. In the Areas of Accountability section, check boxes to indicate the LEED for Homes credits for which you have the
Step 2. Complete the General Information section of this form.
Step 3. Skip the Overall Performance Data section of the form (to be completed by Provider/Rater).
primary design/implementation responsibility.
Accountability forms
O&M manual
Materials list
Calculations, etc.
DOCUMENTATION
COMPLETION
Copyright © 2007 Design AVEnues
On-site verification
Performance testing
Paperwork verification
Scoring & rating
Certification
MANDATORY TESTS
Envelope air leakage
Duct leakage
Refrigerant charge
OPTIONAL TESTS
Outdoor air flow
Exhaust air flow
Supply air distribution
Irrigation system
& FINAL
VERIFICATION
COMPLETION
Copyright © 2007 Design AVEnues
USE INTEGRATIVE DESIGN
Courtesy of Duncan Prahl, IBACOS
Copyright © 2007 Design AVEnues
USE INTEGRATIVE DESIGN “Integrated design can reduce
construction cost while providing
significant sustainable design
benefits. On the CSU Monterey
Bay Library, by comparing a
number of integrated structural,
mechanical, and architectural
schemes, we found that tradeoffs
from one discipline more than
offset added costs in another,
while achieving energy savings of
almost 40%.”
~ Scott Shell, EHDD Architects
Courtesy of Duncan Prahl, IBACOS
Copyright © 2007 Design AVEnues
“Any phenomenon is controlled both by the
working of its smaller parts and by its role
in the larger system of which it is a part.”
- H.T. Odum (Environment, Power & Society, 1971)
Copyright © 2007 Design AVEnues
The integrative design process
Recognizes that each aspect of building
design influences others
• Envelope affects HVAC sizing
• Windows affect lighting loads
• Lighting affects cooling loads
• Waste heat from one process
can be pre-heating for another
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Keys to integrative design
Commit to the integrative design process
Hold a charrette
Have regular meetings
Establish communication protocols
Identify scope of responsibilities and interactions for all parties
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Build your team
Assess your team’s capabilities
Identify any voids
Fill the voids
Energy savvy?
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Who should be involved?
CATEGORY TYPICAL KEY CONTRIBUTORS
ID architect, builder
LL developer
SS civil, landscape, builder
WE civil, landscape, mechanical
EA architect, mechanical, T24, PV
EQ mechanical, T24, builder, structural
MR structural, developer, architect, interiors
AE builder, developer, architect
Copyright © 2007 Design AVEnues
Who should be involved?
Owner/developer
Architect
General contractor
MEP consultant(s)
Energy analyst
Landscape designer
Interior designer
Others …
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Who should be involved?
Owner/developer
Architect
General contractor
MEP consultant(s)
Energy analyst
Landscape designer
Interior designer
Others …
One and the same?
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The integrative design process
Develop a design concept
Test alternatives using parametric analysis –
evaluate effect of one variable at a time on:
• energy performance
• constructability & cost
• other aspects of design
Test different combinations © Antonprado | Dreamstime.com
Copyright © 2007 Design AVEnues
MODEL EARLY & OFTEN
Energy modeling: it’s not just about compliance – it’s a design tool!
Copyright © 2007 Design AVEnues
MODEL EARLY & OFTEN
Energy modeling: it’s not just about compliance – it’s a design tool!
© Kellyoptra | Dreamstime.com
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MODEL EARLY & OFTEN
NOT
Energy modeling: it’s not just about compliance – it’s a design tool!
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Your energy consultant
Choosing a good one
• Experience matters (relevant experience)
• Mindset matters (maybe even more!)
Collaborating
• A member of the design team
• Your mechanical engineer, possibly?
• Needs to understand all the design opportunities
Copyright © 2007 Design AVEnues
When and why should you do energy
modeling?
Before the charrette
During the charrette
To test design options
To qualify for tax credits & other incentives
To comply with green building programs
To capture the performance as accurately as
possible!
EARLY &
OFTEN!
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GET THE ORDER RIGHT The Basics
• Siting
• Massing
• Orientation © Gabigarcia |
Dreamstime.com
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GET THE ORDER RIGHT The Basics
• Siting
• Massing
• Orientation • Sun
• Wind
• Water
• Neighbors
• Trees
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Dreamstime.com
© Serg_velusceac | Dreamstime.com
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Minimize Occupant-driven Loads
• Can you control the stuff?
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Minimize Occupant-driven Loads
• Can you control the stuff?
• Design can influence energy-use behavior
• Cross-ventilation, etc.
Tassafaronga, David Baker + Partners
Copyright © 2007 Design AVEnues
Minimize Occupant-driven Loads
• Can you control the stuff?
• Design can influence energy-use behavior
• Cross-ventilation, etc.
• Monitoring &
feedback
Tassafaronga, David Baker + Partners
Courtesy Lucid Design Group
Copyright © 2007 Design AVEnues
Minimize Enclosure Loads
It’s all about the
envelope!
Mike Keesee, SMUD, Project Manager,
The House of the Future
Copyright © 2007 Design AVEnues
Minimize Enclosure Loads • Window orientation & size
• Window shading
• Window R-value (not U!)
• Window SHGC
It’s all about the
envelope!
Mike Keesee, SMUD, Project Manager,
The House of the Future
Copyright © 2007 Design AVEnues
Minimize Enclosure Loads • Window orientation & size
• Window shading
• Window R-value (not U!)
• Window SHGC
• Structure (thermal bridging)
It’s all about the
envelope!
Mike Keesee, SMUD, Project Manager,
The House of the Future
Copyright © 2007 Design AVEnues
Minimize Enclosure Loads • Window orientation & size
• Window shading
• Window R-value (not U!)
• Window SHGC
• Structure (thermal bridging)
• Air leakage
It’s all about the
envelope!
Mike Keesee, SMUD, Project Manager,
The House of the Future
Copyright © 2007 Design AVEnues
Minimize Enclosure Loads • Window orientation & size
• Window shading
• Window R-value (not U!)
• Window SHGC
• Structure (thermal bridging)
• Air leakage
• Insulation quantity
• Insulation quality
It’s all about the
envelope!
Mike Keesee, SMUD, Project Manager,
The House of the Future
Copyright © 2007 Design AVEnues
Minimize Equipment Loads
• Heating efficiency & sizing
• Cooling efficiency & sizing
• Duct leakage & sizing
• Water heater efficiency
• Hot water distribution
• Lighting
• Appliances © Caraman | Dreamstime.com
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Integrate the Other Issues
• Indoor environmental quality
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Integrate the Other Issues
• Indoor environmental quality
• Water efficiency • Plumbing
• Plants
• Irrigation
Copyright © 2007 Design AVEnues
Integrate the Other Issues
• Indoor environmental quality
• Water efficiency • Plumbing
• Plants
• Irrigation
• Materials
Copyright © 2007 Design AVEnues
Integrate the Other Issues
• Indoor environmental quality
• Water efficiency • Plumbing
• Plants
• Irrigation
• Materials
• Site and stormwater protections
Copyright © 2007 Design AVEnues
Integrate the Other Issues
• Indoor environmental quality
• Water efficiency • Plumbing
• Plants
• Irrigation
• Materials
• Site and stormwater protections
• Renewable energy
Copyright © 2007 Design AVEnues
SET EXPECTATIONS
LEED for Homes is an above-code
program
It will require change from all parties
Anticipate needs for education
Document all agreements
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Focus on what’s different
Energy Star / Thermal
Bypass Checklist
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Focus on what’s different
Energy Star / Thermal
Bypass Checklist
Durability planning
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Focus on what’s different
Energy Star / Thermal Bypass Checklist
Durability planning
Waste planning
Copyright © 2007 Design AVEnues
Focus on what’s different
Energy Star / Thermal Bypass Checklist
Durability planning
Waste planning
Operations &
maintenance
manual
Copyright © 2007 Design AVEnues
Offer education & resources
HERS Rater shadowing
Diagnostic pre-testing
Trades training
Resource listings
Waste diversion opportunities & methods
Continuing education = competitive advantage
Learning curve =
continuing education
investment, not a
cost of the project.
Copyright © 2007 Design AVEnues
Understand cost impacts
1. New practices
You’re no longer creating the same
product, so the cost will probably change;
how much depends on current practices.
Copyright © 2007 Design AVEnues
Hyundai? … or Honda?
More fuel-efficient
More durable
Better-designed
More comfortable
Superficially similar, but …
Cost difference? Substantial.
Copyright © 2007 Design AVEnues
Honda? … or Honda with sunroof?
Same fuel efficiency
Same durability
Same design quality
Slight increase in comfort
Pretty much the same –
Cost difference? Minor.
Copyright © 2007 Design AVEnues
Understand cost impacts
1. New practices
• New baseline, new product, new price?
2. Learning curve
• One-time investment benefits all future projects
Copyright © 2007 Design AVEnues
Understand cost impacts
1. New practices
• New baseline, new product, new price?
2. Learning curve
• One-time investment benefits all future projects
3. Program administration
• Verification + Quality Management = VALUE ADDED
Copyright © 2007 Design AVEnues
MANAGE THE PROCESS
Assign responsibility for every credit
Last Updated: May 31, 2009
Credit Description Notes Party Responsible
for Info in CDs /
Other Doc'n
Where in Documents
Credit is Addressed
Early Final
ID 1.1 Preliminary Rating (P)
ID 1.2 Integrated Project Team NO List of team members and
meeting datesID 2.1 Durability Planning (P) Mandatory requirements: risk evaluation, checklist, response to checklist. Client
must develop durability checklist to point us to where in the drawings the durability
issues were adressed. There can be some field verification, but all medium + high
risk areas must include responses in drawings.
Architect Risk Eval Form and Durability
Checklist + durability measures
included in pjt docs
ID 2.2 Durability Management reviewed Table 1-pg. 22. Washer over living space. Conventional clothes dryer.
May use DensShield fiberglass faced board. Completed durability checklist to be
used in field for contractor verification prior to LEED rater verification.
Architect Complete Durability Checklist
(check off items as completed)
ID 3 Innovative or Regional Design Off-site improvements good candidate for ID proposal; Andy G to provide
community letter as basis for application. They also salvaged and donated
landscaping / retaining walls for use by a school. The site was a nursery before.
Give it a maybe. AE to research fee to submit proposals, and send them the CIR/ID
form.
Owner CIR/ID Request Form and
supporting documents
Project X LEED for Homes Notes
Project Team Documentation (LEED Only)
Key: boldface item(s)= formal submittal to RepDOTTED CELL = PROJECT IS NOT PURSUING
CREDIT
Copyright © 2007 Design AVEnues
Manage the process
Assign someone to shepherd
the responsible parties
Check in with key parties
monthly
Prompt for questions,
documentation
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Manage the process
Provide research and tracking tools (MR2)
Project: Project X shaded = n/a 2 Additional ? Pts
Total by type: 7.5 1.5 0.5 8 Grand Total
Assembly Component EPP Specifications EPP
Pts/No/?
Emissions
Specifications
Lo-VOC
Pts/No/?
Local
Pts/No/?
Respon-
sible
Party
Project Specifications/
Notes
Location in
drawings or specs
Documentation
(e.g., URL, FSC line-item
inv, mfr ltr, cut sheet)
INTERIOR:Floor Flooring - 45% of
total floor area
Linoleum, cork, bamboo,
FSC certified or reclaimed
wood, sealed concrete,
recycled-content flooring
0.5 All carpet and pad
complies with carpet &
Rug Inst Green Label
Plus Pgrm; addtl 1/2 pt
for using SCS FloorScore
certified pdt.
No HKS,
BAMO
FSC Certified; 100%
Reclaimed wood used on
90% of total floor area
Spec section 09648;
IA2.11P; IA2.12P
IA2.13P; Interior Finish
Code Key: WD-002
Floor Flooring - 90% of
total floor area
See Above--addtl 0.5 point. 0.5 automatic 1/2 pt if all
hard surface flooring
0.5 No HKS,
BAMO
FSC Certified; 100%
Reclaimed wood used on
90% of total floor area
Spec section 09648;
IA2.11P; IA2.12P
IA2.13P; Interior Finish
Code Key: WD-002
Interior Walls
and Ceilings
Gypsum board
(wallboard)Recycled-content
1 0.5 No HKS 95% Recycled Content Spec section 09250, 2.01
& 2.02
Interior walls +
ceilings +
millwork
Paints & coatings Recycled paint (must meet
GreenSeal Std GS-43,
<250 g/L VOC)
No See Table 25, p.81 in
LEED for Homes Rating
System.; additional 1/2
pt if paint is Zero-VOC2
0.5 BAMO Zero VOC paint is to be
used, zero VOC stain at
Library
VOC content specified in
section 09900 for paints
and section 06402 for
walls; IA5.09
Interior Finish Code Key:
WD-006
Use "PAINTS & COAT." tab
to track all paints &
coatings
Other Adhesives &
sealants
See Table 26, p.82 in
LEED for Homes Rating
System.
? HKS,
BAMO
?? ??
Other Cabinets Recycled content, FSC
certified, reclaimed, or
renewable3; AND
composite materials must
contain no urea-
formaldehyde resin
0.5 No BAMO 100% Reclaimed wood to
be used on all cabinets;
Cabinet core composed of
combination of reclaimed
wood, FSC certified wood
composite and no urea
formaldehyde resin
VOC content specified in
section 06410; All Interior
Elevations IA-5.01
through IA-5.32; Interior
Finish Code Key: WD-
004, WD-005, WD-008,
WD-009
Use "ADH. & SEAL." tab to
track all adhesives &
sealants
LEED MR 2.2: Environmentally Preferable Products
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Manage the process
Provide research and tracking tools (MR3)
MR 3 - Construction Waste Management Planning and Reduction: Sample Calculation
Project Name:
Home Size (sf): 2900 Units used for Report*: cu. yds.
Date Tag # Load Description Taken To Landfill Incinerator
11/5/2008 1232 Misc construction waste ABC Waste Mgnt 10 N/A
11/2/2008 234324 Misc construction waste ABC Waste Mgnt 2 N/A
11/6/2008 5345 Steel Recycled Steel, Inc. 15.00 Recycled
11/9/2008 72356 Scrap wood ABC Waste Mgnt 1.40 N/A
11/12/2008 456456 Concrete Dave's Concrete 2.50 Recycled: crushed and
used as aggregate
17.50
* Use volume (cu. yds.) or weight (tons) consistently throughout form.
Percent Waste 43.4%
Waste Rate 4.6 cu. yds. /1000 sf
Percent Diverted 56.6%
Diversion Type
Total waste 13.40
Prepared By:
Surplus Material Removed*
Total surplus material 30.90
Waste Diverted
Material
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Manage the process
Provide research and tracking tools (WE3)
WE3-COMPLIANT FIXTURESShowerheads:
High Efficiency:
Am Conservation AM Conservation AM Conservation ETL
Spoiler P Spoiler P Handheld Atomizing Oxygenics Low-Flow
Very High Efficiency:
Bricor Delta EcoTech Water Inc
Elite Series Water Efficient Showerheads Laminar flow Pressured…
Copyright © 2007 Design AVEnues
Manage the process
Ensure every
LEED measure
being pursued is in the construction
documents!
Copyright © 2007 Design AVEnues
Keys to success
Commitment
Capacity-building
Planning & organization
Selling the benefits
Ongoing
communication
Copyright © 2007 Design AVEnues
Q & A
Thank you! avedminster@designavenues.net